Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge.
城市污泥对退化森林生态系统土壤的人工熟化研究。
This could be confirmed by the organic matter and nitrogen circulation and the improvement of soil fertility.
这可以从有机物质、氮素的循环和土壤肥力因素的改善得到证明。
It is concluded that the mixed stand can be able to be self-rich in soil fertility, which benefit the maintenance and improvement of site fertility under Chinese fir plantation.
表明杉木拟赤杨混交林具有良好的培肥土壤功能，对杉木人工林的地力维持和提高有重要意义。
On the basis of this, we put forward the suggestion of soil development and using. Typci Hapli-Aridic Cambosols first should do soil improvement and improve soil fertility before using.
在此基础上对该区土壤提出了开发利用建议，普通干旱正常盐成土首先应进行土壤改良和培肥才可利用。
On the basis of this, we put forward the suggestion of soil development and using. Typci Hapli-Aridic Cambosols first should do soil improvement and improve soil fertility before using.
在此基础上对该区土壤提出了开发利用建议，普通干旱正常盐成土首先应进行土壤改良和培肥才可利用。
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