Farmland ecosystem

Analysis of Value Counting Method of Water Resource utilization in Farmland Ecosystem

农田生态系统中水资源利用价值核算方法初探

Nitrogen Environmental Risk Assessment Research in Farmland Ecosystem

农田生态系统的氮素环境风险评价研究进展

Energy efficiency analysis about farmland ecosystem in Beijing

北京平原地区农田能效益分析

Research Progress in Conformation and Transformation of Cadmium in Farmland Ecosystem

农田生态系统中镉的形态与迁移转化研究进展

Application of Maximum Probability Principle in Farmland Ecosystem

最大概率原理在农田生态系统中的应用

Studies on evolution mechanism and control strategy for farmland ecosystem in Longjing County

长白山地区龙井县农田生态系统的演变机制及调控战略研究

Many studies have shown that it is seriously harmful to farmland ecosystem .

已有研究表明，它严重危害着我国的农田生态系统。

Farmland ecosystem service and its formation mechanism

农田生态系统服务功能及其形成机制

4 , farmland ecosystem begins to convert into a better cycle ;

农田生态系统开始向良性循环转化；

Consideration on Key Technology about Recycle Economic Mode of High Efficiency in Farmland Ecosystem in Central South China

中南农田高效循环模式关键技术研究的几点思考

Sulfur Content in Rainfall and its Effects on the Farmland Ecosystem in Hubei Province

湖北降水中的硫及其对农田生态的影响

Analyze of Carbon Source / Sink of Farmland Ecosystem for Example Shan Xi Province

山西省农田生态系统碳源汇问题分析

Soil Nitrogen Balance Simulation and Potential Enviromental Risk Assessment in Farmland Ecosystem at County Scale

县域农田生态系统土壤氮素平衡模拟及其潜在环境风险评价

Determinate Standard of Dominant Species of Natural Enemy Insects in Farmland Ecosystem

农田生态系中天敌昆虫优势种的评定标准

N and P balances in farmland ecosystem and their response to fertilizers

农田生态系统N、P营养平衡及其肥料效应

Dissipative Structure of Densely Populated Areas Farmland Ecosystem of Lower Reach of

长江下游人口密集区农田生态系耗散结构&Ⅴ.扬州市农村庭营经济价值熵

A study on the substantial cycle of the farmland ecosystem in Hunchun

珲春市农田生态系统的物质循环分析

The effect of alfalfa introduced in farmland ecosystem on soil eco-environment is studied in this paper .

研究了农田生态系统中引种紫花苜蓿对土壤生态环境的影响。

Advance in Modeling Nitrogen Cycling in Farmland Ecosystem

农田生态系统中氮循环模型研究进展

Characteristics and Evaluation of Material Flow of Wheat Farmland Ecosystem on Loess Plateau Rainfed Highland

黄土旱塬麦田生态系统物质平衡及评价

The Characteristics of a Densely Populated Areas Farmland Ecosystem of Lower Reach of Yangtze River

长江下游一个世界高密度人口组成的农田生态系统的特点

Whether the regional farmland ecosystem with high yield is sustainable or not is a key issue concerned food security .

区域粮食高产农田生态系统是否可持续成为关系中国粮食安全的热点问题。

Research Advance of Environmental Fate and Ecological Remediation of Herbicide Atrazine in Farmland Ecosystem

农田系统中除草剂阿特拉津的环境行为和生态修复研究进展

Therefore , the black soil farmland ecosystem status and its problems become the focus of attention of government and scientists .

因此，黑土区农田生态系统的现状和存在的问题成为了政府和科学家们关注的焦点。

In the farmland ecosystem , heavy metal lead is an extremely typical pollutant full of potential harm .

重金属铅是一种在农田生态系统中极具潜在危害的重要污染物。

Improvement of farmland ecosystem .

改善农田生态系统；

The use of fertilizer in modern agriculture broke the close circle of nutrient in the traditional farmland ecosystem .

近代农业中化肥的施用打破了传统农业生产体系中封闭的物质循环。

Ammonia Volatilization of Corn Farmland Ecosystem under Various Proportions of Nitrogen and Phosphorus in Black Soil

黒土玉米农田生态系统氮磷配施氨挥发规律

Irrational fertilizer or inputs structure will destroy the environment and soil structure and make the production of Farmland ecosystem lower .

不合理的化肥投入会造成环境污染，破坏土壤结构，使农田生态系统生产力降低。

Energy Flow in Winter Wheat Corn Farmland Ecosystem Under Conservational Tillage Sys - tem

保护性耕作小麦&玉米农田生态系统能流特点的研究